I don't want to update my firmware for my Firehawk by USB from my pc. Instead i want to use the remote app and bluetooth to update. Its warning me it may take up to 2 hours to update but is timiing me out each time i try to update on the app. I'm going on to settings/device flash as instructed but doesn't seem to go any further than this. Even when i have the firehawk and iphone paired together it has "device flash version-no device" and "update services not available" below that. Its definitely paired together so i dont understand why its so difficult to update!